Datasheet 搜索 > 电池管理芯片 > TI（德州仪器） > TPS23754PWP 数据手册 > TPS23754PWP 数据手册 1/45 页
器件3D模型￥ 11.48
TPS23754PWP 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
电池管理芯片
封装:
HTSSOP-20
描述:
TEXAS INSTRUMENTS TPS23754PWP 芯片, 以太网供电控制器, 大功率, 20TSSOP
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3P4Hot
典型应用电路图在P26P27P28P29P30P31P32P33P34P35
原理图在P12P22
封装尺寸在P38P40P41
标记信息在P38
封装信息在P37P38P39P40P41
技术参数、封装参数在P4
应用领域在P1P24P45
电气规格在P6P7P8P12P18P23
导航目录
TPS23754PWP数据手册
Page:
of 45 Go
若手册格式错乱，请下载阅览PDF原文件
M1
R
CS
C
OUT
D
VC1
GATE
ARTN
V
C
CS
C
VC
CTL
V
B
D
1
C
1
R
DEN
From Ethernet
Pairs 1,2
V
SS
C
IN
R
CTL
C
CTL
From Ethernet
Pairs 3,4
CLS
DEN
FRS
T2P
R
CLS
R
T2P-OUT
Type2PSE
Indicator
R
FRS
V
B
C
VB
R
FBU
R
FBL
TLV431
R
OB
C
IZ
V
OUT
PAD
V
DD1
GAT2
M2
D
CL
C
CL
C
C
M4
M3
R
T2P
D
A
R
APD2
R
APD1
N/CORPPD
Adapter
DT
R
BLNK
APD
R
DT
BLNK
V
DD
RTN
COM
L
OUT
L
VC
T1
C
IO
D
VC2
Optional
Interface
V
T2P-OUT
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Reference
Design
TPS23754
,
TPS23754-1
,
TPS23756
SLVS885H –OCTOBER 2008–REVISED OCTOBER 2015
TPS2375x High-Power/High-Efficiency PoE Interface
and DC-DC Controller
1
1 Features
The PoE interface features the new extended
• Powers up to 30-W (Input) PDs
hardware classification necessary for compatibility
• DC-DC Control Optimized for Isolated Converters
with high-power midspan power sourcing equipment
• Supports High-Efficiency Topologies
(PSE) per IEEE 802.3at. The detection signature pin
• Complete PoE Interface
can also be used to force power from the PoE source
off. Classification can be programmed to any of the
• Enhanced Classification per IEEE 802.3at With
defined types with a single resistor.
Status Flag
The DC-DC controller features two complementary
• Adapter ORing Support
gate drivers with programmable dead time. This
• Programmable Frequency With Synchronization
simplifies the design of active-clamp forward
• Robust 100-V, 0.5-Ω Hotswap MOSFET
converters or optimized gate drive for highly-efficient
• –40°C to 125°C Junction Temperature Range
flyback topologies. The second gate driver may be
disabled if desired for single MOSFET topologies.
• Industry Standard PowerPAD™ HTSSOP-20
The controller also features internal soft start,
bootstrap start-up source, current-mode
2 Applications
compensation, and a 78% maximum duty cycle. A
• IEEE 802.3at Compliant Devices
programmable and synchronizable oscillator allows
design optimization for efficiency and eases use of
• Video and VoIP Telephones
the controller to upgrade existing power supply
• RFID Readers
designs. Accurate programmable blanking, with a
• Multiband Access Points
default period, simplifies the usual current-sense filter
design trade-offs.
• Security Cameras
The TPS23754 device has a 15-V converter start-up
3 Description
while the TPS23756 device has a 9-V converter start-
The TPS23754 and TPS23756 devices have a
up. The TPS23754-1 replaces the PPD pin with a no-
combined power-over-ethernet (PoE), powered-
connect for increased pin spacing.
device (PD) interface, and current-mode DC-DC
controller optimized specifically for isolated
Device Information
(1)
converters. The PoE interface supports the IEEE
PART NUMBER PACKAGE BODY SIZE (NOM)
802.3at standard.
TPS23754
The TPS23754 and TPS23756 support a number of
TPS23754-1 HTSSOP (20) 6.50 mm × 4.40 mm
input voltage ORing options including highest voltage,
TPS23756
external adapter preference, and PoE preference.
(1) For all available packages, see the orderable addendum at
These features allow the designer to determine which
the end of the data sheet.
power source will carry the load under all conditions.
High-Efficiency Converter Using TPS23754
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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